Theorem readdcli 7040

Description: Closure law for addition of reals. (Contributed by NM, 17-Jan-1997.)

Hypotheses

Ref	Expression
recni.1	|- A e. RR
axri.2	|- B e. RR

Assertion

Ref	Expression
readdcli	|- ( A + B ) e. RR

Proof of Theorem readdcli

Step	Hyp	Ref	Expression
1		recni.1	. 2 |- A e. RR
2		axri.2	. 2 |- B e. RR
3		readdcl 7007	. 2 |- ( ( A e. RR /\ B e. RR ) -> ( A + B ) e. RR )
4	1, 2, 3	mp2an 402	1 |- ( A + B ) e. RR

Syntax hints:   e. wcel 1393  (class class class)co 5512   RRcr 6888   + caddc 6892

This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-mp 7  ax-ia3 101  ax-addrcl 6981

This theorem is referenced by:  resubcli  7274  eqneg  7708  2re  7985  3re  7989  4re  7992  5re  7994  6re  7996  7re  7998  8re  8000  9re  8002  10re  8004  numltc  8387  ex-fl  9895